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Expendable parts and supplies (Tables) | 12 Months Ended
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Dec. 31, 2017
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Disclosure of Expendable Parts and Supplies |
|  | 2017 |  |  | 2016 |
Material for repair and maintenance |  | $ | 79,424 |  |  | $ | 71,876 |
Other inventories |  |  | 3,058 |  |  |  | 3,101 |
|  |  | 82,482 |  |  |  | 74,977 |
Allowance for obsolescence |  |  | (657 | ) |  |  | (475 | )
|  | $ | 81,825 |  |  | $ | 74,502 |

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- Definition The disclosure of detailed information about inventories. + References No definition available. + Details
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